9. Troubleshooting
Fault
Possible cause
Remedy
The power tool does not run.
The battery is discharged or fitted
incorrectly.
The battery must be heard to en-
gage with a double click or, respec-
tively, needs to be charged.
Electrical fault.
Remove the battery from the power
tool and contact Hilti Service.
The battery is discharged/hot.
Deep discharge prevention / the
electronics switch off. Insert the
battery in the charger or allow it to
cool down.
The on / off button can not
be pressed, i.e. the button is
locked.
Not a fault (safety function).
Press the switch-on interlock.
Running speed suddenly
drops considerably.
The saw blade jams.
Keep the saw blade running
straight.
Chips are not transported into
the chip collector and thus fall
onto the base plate.
The chip collector is full or the chip
deflector is blocked.
Empty the chip collector and/or
clean the chip ejector channel.
The saw blade stalls.
Saw advance pressure is too high.
Reduce advance pressure and
restart the saw.
The power tool doesn’t work
and all 4 LEDs blink.
The power tool has been over-
loaded.
Release the control switch and
press it again.
The overheating prevention cut-out
has been activated.
Allow the power tool to cool down.
Clean the ventilation slots.
The power tool doesn’t run
and 1 LED blinks.
The battery is discharged.
Change the battery and recharge
the discharged battery.
The battery is too hot or too cold.
Bring the battery to the recom-
mended working temperature.
The battery runs down more
quickly than usual.
Battery condition is not optimal.
Have battery condition diagnosed
by Hilti Service or replace with a
new battery.
The battery does not engage
with an audible double click.
The retaining lugs on the battery
are dirty.
Clean the retaining lugs and check
that the battery engages securely.
Contact Hilti Service if the problem
persists.
The power tool or the battery
becomes very warm.
Electrical fault.
Switch the power tool off imme-
diately, remove the battery and
contact Hilti Service.
The power tool has been
overloaded (application limits
exceeded).
Use the right power tool for the job
(don’t use a low-powered tool for
heavy work).
en
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Summary of Contents for SCM 18-A
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